Function: frameoperator
FRAMEOPERATOR Frame Operator
  Usage:  o=frameoperator(F, f);

  Input parameters:
         F    : frame
         f    : input vector

  Output parameter: 
         h    : output vector
    
  h=FRAMEOPERATOR(F,f) applies the frame operator associated with the frame 
  F to the input f.

  If the frame F is a tight frame, then h equals f up to the constant 
  frac{1}{A} where A is the lower frame bound of F. If the frame F*
  is an orthonormal basis, or more general a Parseval frame, then h equals 
  f. 

Url: http://ltfat.github.io/doc/frames/frameoperator.html

Package: ltfat